Results 21 to 30 of about 1,842,828 (301)

Effects of La2O3-Doping and Sintering Temperature on the Dielectric Properties of BaSrTiO3 Ceramics [PDF]

Materials Research, 2016
Using BaCO3, SrCO3 and TiO2, et al as crude materials, La2O3 as dopant, Ba0.8Sr0.2TiO3 (BST) Ceramics of perovskite structure were prepared by solid state reaction method.
HongWei Zhao, YuanLiang Li, ChunRui Chang, ChunLiang Yan   +3 more
doaj   +1 more source

Enhancing Electrical Outputs of Piezoelectric Nanogenerators by Controlling the Dielectric Constant of ZnO/PDMS Composite

Micromachines, 2021
Structural optimizations of the piezoelectric layer in nanogenerators have been predicted to enhance the output performance in terms of the figure of merit.
Yerkezhan Amangeldinova, Dimaral Aben, Xiaoting Ma, Heesang Ahn, Kyujung Kim, Dong-Myeong Shin, Yoon-Hwae Hwang   +6 more
doaj   +1 more source

The Predicted Dielectric Constant of an Amorphous PVDF Changing with Temperature by Molecular Dynamics Simulations

International Journal of Electrochemical Science, 2018
PVDF, a soft dielectric material, has attracted great attention in the research field of soft smart materials. However, some of the mechanisms for the dielectric and piezoelectric behaviors of PVDF are still not clear.
Taotao Hu, Bingbing Hu, Yabin Yan
doaj   +1 more source

Giant dielectric permittivity in ferroelectric thin films : domain wall ping pong [PDF]

, 2015
This study was supported by the National Key Basic Research Program of China (No. 2014CB921004), the National Natural Science Foundation of China (Nos.
Scott, James Floyd, Wei Zhang, D., Seong Hwang, C., Jian Meng, X., Hyuk Park, M., Jin Kim, Y., Quan Jiang, A., Yoo, S.   +7 more
core   +1 more source

Permittivity effects of particle agglomeration in ferroelectric ceramic-epoxy composites using finite element modeling

AIP Advances, 2018
The size dependence of the dielectric constants of barium titanate or other ferroelectric particles can be explored by embedding particles into an epoxy matrix whose dielectric constant can be measured directly.
Jonas L. Kaufman, Scott H. Tan, Kirklann Lau, Ashka Shah, Robert G. Gambee, Chris Gage, Lupe MacIntosh, Albert Dato, Peter N. Saeta, Richard C. Haskell, Todd C. Monson   +10 more
doaj   +1 more source

Achieving excellent temperature-stable dielectric properties of -based lead-free ceramics via doping

Journal of Advanced Dielectrics, 2023
The lead-free ceramics ([Formula: see text])(0.94[Formula: see text][Formula: see text][Formula: see text]TiO3-0.06BiAlO3)-[Formula: see text]AgNbO3 (denoted as BNBTA-[Formula: see text]AN) were synthesized via a solid-state sintering method.
Li-na Liu, Xiao-ming Chen, Xing-xing Wang, Han-li Lian   +3 more
doaj   +1 more source

Dielectric Characterization of Chinese Standard Concrete for Compressive Strength Evaluation

Applied Sciences, 2017
Dielectric characterization of concrete is essential for the wireless structural health monitoring (SHM) of concrete structures. Guo Biao (GB) concrete refers to the concrete mixed and cast in accordance with the Chinese standard. Currently, China is the
Kwok L. Chung, Lei Yuan, Songtao Ji, Li Sun, Chengping Qu, Chunwei Zhang   +5 more
doaj   +1 more source

Characterization of Terahertz Dielectric Constant and Pore Structure of Hardened Cement Paste with GEM Model

Taiyuan Ligong Daxue xuebao, 2023
Purposes A deep understanding of the pore structure of cement paste is important for improving the performance of cement-based materials. Methods In this paper, terahertz time-domain spectroscopy (THz-TDS) system was used to test the terahertz time ...
Wentao ZHANG, Zhiguo WANG, Zhiyong WANG, Hongxiu DU, Xiangyu LI   +4 more
doaj   +1 more source

Study on soil dielectric constant models: A review

Guan'gai paishui xuebao
【Objective】 Soil dielectric constant measures the ability of a soil to transmit electric fields. It is the ratio of the capacitance of a soil sample to the capacitance of air-filled space of the same volume.
XU Xingqian, WANG Haijun, QU Xin, PENG Guangcan, ZHAO Xi   +4 more
doaj   +1 more source

Law of relative dielectric constant of coal under different stresses and gas pressures

矿业科学学报, 2018
In order to study the law of the relative dielectric constant of coal containing gas, the relative dielectric constant of coal containing gas under different stress and gas pressure is studied by using self-made electrical parameter test system, and the ...
Li Xiangchun, Zhang Liang, Nie Baisheng, Yang Chunli, Zhu Feifei   +4 more
doaj   +1 more source